2024

最新文章

• Bright excitons in black phosphorus Twisted layers of atoms provide a tunable playground for quantum optoelectronics AI翻译
  作者：Milosevic, Milorad V.; Covaci, Lucian
  作者单位：University of Antwerp; University of Antwerp
• A molecular mechanism for bright color variation in parrots AI翻译
  作者：Arbore, Roberto; Barbosa, Soraia; Brejcha, Jindich; Ogawa, Yohey; Liu, Yu; Nicolai, Michael P. J.; Pereira, Paulo; Sabatino, Stephen J.; Cloutier, Alison; Poon, Emily Shui Kei; Marques, Cristiana I.; Andrade, Pedro; Debruyn, Gerben; Afonso, Sandra; Afonso, Rita; Roy, Shatadru Ghosh; Abdu, Uri; Lopes, Ricardo J.; Mojzes, Peter; Marsik, Petr; Sin, Simon Yung Wa; White, Michael A.; Araujo, Pedro M.; Corbo, Joseph C.; Carneiro, Miguel
  作者单位：Universidade do Porto; Universidade do Porto; Washington University (WUSTL); Charles University Prague; Ghent University; Royal Belgian Institute of Natural Sciences; Universidade do Porto; University of Hong Kong; Ben-Gurion University of the Negev; Universidade do Porto; Universidade de Lisboa; Charles University Prague; Czech University of Life Sciences Prague; Washington University (WUSTL); Washington University (WUSTL); Universidade de Coimbra
  摘要：Parrots produce stunning plumage colors through unique pigments called psittacofulvins. However, the mechanism underlying their ability to generate a spectrum of vibrant yellows, reds, and greens remains enigmatic. We uncover a unifying chemical basis for a wide range of parrot plumage colors, which result from the selective deposition of red aldehyde- and yellow carboxyl-containing psittacofulvin molecules in developing feathers. Through genetic mapping, biochemical assays, and single-cell ge...
• Alzheimer's drug approvals create prescribing dilemmas Clinicians and patients weigh modest benefits of the antibodies against sometimes-serious side effects AI翻译
  作者：Couzin-Frankel, Jennifer
• Transcriptome-wide splicing network reveals specialized regulatory functions of the core spliceosome AI翻译
  作者：Rogalska, Malgorzata E.; Mancini, Estefania; Bonnal, Sophie; Gohr, Andre; Dunyak, Bryan M.; Arecco, Niccolo; Smith, Peter G.; Vaillancourt, Frederic H.; Valcarcel, Juan
  作者单位：Barcelona Institute of Science & Technology; Pompeu Fabra University; Centre de Regulacio Genomica (CRG); Pompeu Fabra University; ICREA; Max Planck Society
  摘要：The spliceosome is the complex molecular machinery that sequentially assembles on eukaryotic messenger RNA precursors to remove introns (pre-mRNA splicing), a physiologically regulated process altered in numerous pathologies. We report transcriptome-wide analyses upon systematic knock down of 305 spliceosome components and regulators in human cancer cells and the reconstruction of functional splicing factor networks that govern different classes of alternative splicing decisions. The results d...
• Keeping outbreaks at bay An epidemiologist interrogates the often unseen work of mitigating disease spread AI翻译
  作者：Long, Kanya
  作者单位：University of California System; University of California San Diego
• Secure ancient animal remains from permafrost AI翻译
  作者：Ramos, Raul; Plotnikov, Valerii; Cheprasov, Maksim Y.; Plikus, Maksim V.
  作者单位：University of California System; University of California Irvine; North-Eastern Federal University in Yakutsk
• Can Islam and science coexist? AI翻译
  作者：[Anonymous]
• Policy evaluation and the causal analysis of public support AI翻译
  作者：Carattini, Stefano; Dur, Robert; List, John
  作者单位：University System of Georgia; Georgia State University; Erasmus University Rotterdam; Erasmus University Rotterdam - Excl Erasmus MC; University of Chicago
• You won't believe this AI翻译
  作者：Kupferschmidt, Kai
• A self-regenerative heat pump based on a dual-functional relaxor ferroelectric polymer AI翻译
  作者：Wu, Hanxiang; Zhu, Yuan; Yan, Wenzhong; Zhang, Siyu; Budiman, William; Liu, Kede; Wu, Jianghan; Meng, Yuan; Zhao, Xun; Mehta, Ankur; Kaur, Sumanjeet; Pei, Qibing
  作者单位：University of California System; University of California Los Angeles; University of California System; University of California Los Angeles; University of California System; University of California Los Angeles; University of California System; University of California Los Angeles; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory
  摘要：Electrocaloric (EC) cooling presents a promising approach to efficient and compact solid-state heat pumps. However, reported EC coolers have complex architectures and limited cooling temperature lift. In this work, we introduce a self-regenerative heat pump (SRHP) using a cascade of EC polymer film stacks, which have electrostrictive actuations in response to an electric field that are directed to realize efficient heat transfer, eliminating the need for additional transportive or regenerative...